我正在用 PHP 创建一些似乎无效的 JSON 数据。我正在尝试将 google API 集成到我的代码中。
<?php
$con=mysql_connect("localhost","root","") or die("Failed to connect with database!!!!");
mysql_select_db("mobiledb", $con);
// The Chart table contains two fields: weekly_task and percentage
// This example will display a pie chart. If you need other charts such as a Bar chart, you will need to modify the code a little to make it work with bar chart and other charts
$sth = mysql_query("SELECT `id`, `Q1`, `Q2` FROM `table2` WHERE `id`=8710058770");
/*
---------------------------
example data: Table (Chart)
--------------------------
weekly_task percentage marks
Sleep 30 60
Watching Movie 40 80
work 44 90
*/
$rows = array();
//flag is not needed
$flag = true;
$table = array();
$table['cols'] = array(
// Labels for your chart, these represent the column titles
// Note that one column is in "string" format and another one is in "number" format as pie chart only required "numbers" for calculating percentage and string will be used for column title
array('label' => 'id', 'type' => 'string'),
array('label' => 'Q1', 'type' => 'number'),
array('label' => 'Q2', 'type' => 'number')
);
$rows = array();
while($r = mysql_fetch_assoc($sth)) {
$temp = array();
// the following line will be used to slice the Pie chart
$temp[] = array('v' => (string) $r['id']);
// Values of each slice
$temp[] = array('v' => (int) $r['Q1'], 'f' => (int) $r['Q2']);
$rows[] = array('c' => $temp);
}
$table['rows'] = $rows;
$jsonTable = json_encode($table);
echo $jsonTable;
?>
我的 Json 输出并检查http://jsonlint.com/
{
cols: [
{
label: "id",
type: "string"
},
{
label: "Q1",
type: "number"
},
{
label: "Q2",
type: "number"
}
],
rows: [
{
c: [
{
v: "8710058770"
},
{
v: 35,
f: 40
}
]
},
{
c: [
{
v: "8710058770"
},
{
v: 60,
f: 70
}
]
},
{
c: [
{
v: "8710058770"
},
{
v: 75,
f: 85
}
]
}
]
}
我在第 1 行验证 Parse 错误时看到的
错误：{ cols: [ {
-----^ Expecting 'STRING', '}'
print_r($table) 输出
Array
(
[cols] => Array
(
[0] => Array
(
[label] => id
[type] => string
)
[1] => Array
(
[label] => Q1
[type] => number
)
[2] => Array
(
[label] => Q2
[type] => number
)
)
[rows] => Array
(
[0] => Array
(
[c] => Array
(
[0] => Array
(
[v] => 8710058770
)
[1] => Array
(
[v] => 35
)
[2] => Array
(
[v] => 40
)
)
)
[1] => Array
(
[c] => Array
(
[0] => Array
(
[v] => 8710058770
)
[1] => Array
(
[v] => 60
)
[2] => Array
(
[v] => 70
)
)
)
[2] => Array
(
[c] => Array
(
[0] => Array
(
[v] => 8710058770
)
[1] => Array
(
[v] => 75
)
[2] => Array
(
[v] => 85
)
)
)
)
)
{"cols":[{"label":"id","type":"string"},{"label":"Q1","type":"number"},{"label":"Q2","type":"number"}],"rows":[{"c":[{"v":"8710058770"},{"v":35},{"v":40}]},{"c":[{"v":"8710058770"},{"v":60},{"v":70}]},{"c":[{"v":"8710058770"},{"v":75},{"v":85}]}]}